Apparatus for and method of making tubular shafts for golf clubs and the like



Dec. 17, 1929. H. s. BARRETT APPARATUS FOR AND METHOD 0F MAKING TUBULAR SHAFTS FOR- GOLF CLUBS AND THE LIKE Filed Aug. 5, 1927 N uw u v w MN ww ww,

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Patented Dec. 17, 1929 lUNITED STATES PATENT oI-*FICE HAROLD G. BARRETT, 0F WILMETTE, ILLINOIS, AS'SIGNOR TO PYRATONE PRODUCTS'- CORPORATION, OF CHICAGO,

ILLINOIS, A. CORPORATION OF ILLINOIS APPARATUS FOB AND METHOD OP MAKING TUBULAR SHAFTS FOR GOLF QLUBS AND THE LIKE f v sbpucation ma August ,3, 1927. seran No. 210,244.

This invention relates to an improved apparatus for and method of making hollow or tubular shafts for golf clubs and the like, and one .of the objects of the invention is to shape a hollow shaft which is constructed of a nitro-cellulose composition as pyroxyline, or any other suitable nonmet-allic material. Tubular shafts of this character when 'originally manufactured are usually of a hollow construction and the internal'and external diameters of the shaft are generally respectively uniform through the length thereof.

For use as a shaft for Vgolf clubs and the like it is preferable to shape the shaft so that it will be tapering and by so doing a hollow, tapering, re-enforcing core may be inserted thereinto without injury to theshaft or core.

If it is attempted to insert a re-enforcing core into such a shaft when theshaft is of a uniform diameter andwhen. the core tight-y ly iits the shaft, considerable difliculty and inconvenience will be experienced. and damage will be caused to the shaft.

To overcome these difficulties and obj ections and to provide an improved method of shaping the shaft so as to form a casing, and

.before the core yis inserted'thereinto and to cause the shaft or casing to tightly -it the core, is one of the objects of the present invention. To the attainment of these ends and the -accomplishment of other new and useful objects as will appear, the invention consists 1n the features of novelty in substantially the construction, combination 'and arrangement of the parts of theI apparatus, and in substanf tally scrib-ed and claimed, and taken in connection with the accompanying drawing showing a means whereby ried into operation.

In the drawing Figure 1 is a longitudinal sectional view of an apparatus of this character constructed in accordance with the principles of this invention and showin a tubular shaft of non-metallic material t erein, the shaft having its internal and external diameters respectively uniform throughout their lengths.

Figure 2 is the mold or' this method may be carform portion of the apparatus any the method, hereinafter more fully der a longitudinal sectional view of' Figure 4 is a topl plan View of the apparatus.'

In carrying this invention into operation a tubular shaft 10 is provided which may be constructed of pyroxyline, or any other suitable non-metallic material, which may be originally of. uniforminternal and external diameters throughout its length.

The shaft is shaped in any desired or suitable form or configuration, preferably by means of fluid pressure and to that end the shaft is placed within a mold or form and then subjected to the same pliable, after which it is subjected desired configuration.

Any suitable for this purpose, but the preferred apparatus preferably embodies a tubular casing 11 of any desired internal diameter and is open at both ends. J .f

Secured to one extremity of the casing, in desired manner, preferably by being lthreaded thereupon is a collar 12, to which end or closure members 13 are pivotally connected as at 14. The ends of the members 13 are adapted to be swung across the extremity of lthe lcasing 11 and secured in position by means of a suitable collar 15 sleeved thereupon. The inner faces of the members 13 are preferably cut away as at 16 to form a conical recess, and this recess extends entirely through the members 13.

To the other end of the casing 11 is secured in any suitable manner such as by being threaded thereupon, a collar 17 and to this latter collar end members 18 are pivotally connected as at 19. These members are adapted to be brought together to form a closure for the end of they casing and are provided with recesses to form an opening extending through the end members when the latter are closed. i

A collar 20 is adapted to be sleeved upon the action of heat to render to fluid pressure'to shape the same into the t apparatus may be employed l the members 18 to hold them in closed position.. v l

Within the casing 11 is arranged a mold or form 21 Which may be of any desired cons figuration, the internal diameter of which may be of any desired configuration according tothe shape which it is desired to impart to the shaft or tube 10.

This mold may be formed of any suitable material, and in practice it has been found that the mold may be shaped by inserting a mandrel within the casing '11"and then placing plastic material-about the mandrel'. After the plastic material has set the mandrel 15 may be withdrawn, or if desired the mold or form 21 may be shaped before being inserted into the'casing 11. v

' Obviously the end members 13 and 18 may be opened to permit of the insertion or the withdrawal of the mold or form 21.

The shaft ortube 10 to be shaped is placed within the mold 21 and is of a length that the extremities of the tube or shaft will .be gripped between the respective co-operating end members 13-18, after which the collars 15-20 may bie placed in position upon the end members to hold them togetherand vto anchorf the tube or shaft 10. d

The casing'vwith the associated parts is then '30 placed in -position to b e supported by suitable supports to permit of-the entrance -of fluid into the tube or shaft 10. d

To that end the extremity 22 of the tube 10 y may be flared as shown to' receive the end of a nozzle 23, the latter being preferably supported by means of a header or pipe 24.

Connected with this pipe or header 24 are iiuid conveying pipes 25-26, having controld ling valves 27-28 therein. l

The (pipe'25 leads from any suitable l.sourced of flui pressure preferably steam, and the' pipe'26 leads to any suitable source of liquid supply, the latter being preferably hot.

Another pipe 29 leadsA from a suitable source of- Huid supply such as water, of a temperature to chill or reduce the temperature of the tube or shaft after the latter has been shaped. A valve 30 is arranged in the pipe A29 to control the same.

.The other extremity of the tube 10is preferably flared as at 31 and-is adapted to receive the end of-'a nozzle 32, the latter being connected with a pipe 33 which forms a discharge outlet for the Huid that is delivered into the :56 @ubc 10 through 'the nozzle 23.

' A valve 34' is 5 I*outlet pi e 33.

The pipe. 33 and the nozzle` 32 are preferably mounted upon a shiftable bearing 35 to -50 Whlch a link '36 isconnected and which link Ais also connected with an operating handle 37. pivotally mounted as at 38, whereby the bearing' on sup ort 35 may be bodily moved forwardly and ackwardly soas to move the fnozzle 32 into engagement with one @11d 0f provided for controlling the theetube 10 and to move the entire casing 11 toward themembe'r 24 so that the other end 22 of the tube 10"*Will be moved against the 'nozzle 23 so that the entire casing 11 will be supported by the'nozzles 23 and 32, and the parts will then be in the position shown in Figure 1.

In carrying the vvimproved method `into operation` after the tube has been thus positioned either of the valves 27 or 28 may be opened according to the nature of the hot fluid which it is Ydesired to employ, 'previous to which, however, the valve 34 mustbe opened to permit the hot fiuid to flow from the nozzle'23 into and through the tube 10,

out of the nozzle 32 into the discharge pipel33.

. The hot fluid, which may be at any desired temperature, is allowed to flow lthrough thel tube or shaft 10 until the tube is rendered pliable due toits subjection to the action of heat of the Huid. V v

The valve .34 is then closed and the hot fluid is allowed to continue to flow into the tube 10 under pressure and the pressure of the Huid within thel tube or shaft 10 acting upon. the pliable shaft will cause it to expand or conform to the configuration of the mold within which the shaftor tube is located.

After lthe tube or shaft has thus been shaped, the valve or valves lcontrollin the suppl 'of hot fluid to the tube or sha are close and t e valve 34 is o ened. The valve 30 is then o ened to ermit cold fluid, such as water or the like, to iow into the 'shaped tube or shaft, thereby reducing the temperature thereof, and this cold Huid is allowed to flow through the shaped tube until the material in the tube becomes set. A

. 1 The entire casing is vthen removed from its sup ort by shifting the handle 33 to move the l The collars. 15 and 20 arethen removedA which will expose. a considerable portion of. the end ofthe tube adjacent each end of the aring 35 away from the casing 11.

casingll. The shaped tube or shaft may be withdrawn from the ymold by drawing upon the larger end thereof or by. exerting a pressure upon the smaller end to force the same out of the mold.

The ends ofthe shaped tube or shaft are then cut off along the lines 39-40,'and the shaft or tube will then be ready to be placed upon a 'golf club shaft or coreand secured thereto in any suitable manner. l v

When the shaft or casing thus formed is placedl upon a core there will be produced a shaft for golf clubsand the like which will be constructed of a non-metallic material reenforced by a metallic core, if a metallic core and possess the method may the steps in the operation of the be varied andA any apparatus suitable forthe purpose may be employed in Obviously carrying out this invention.

ended mold for receivingl A shaft, and means for controlling the introducname to this specification, April, A. D. 1927 operating What is claimed as new 1s:

1. An apparatus for shaping hollow nonmetallic shafts and embodying an open he shaft, members pivotally connected wit the mold Aand coto form lafclosure therefor, said members having co-operating recesses to receive a portion of the shaft, means for introducing a fluid into the mold and intol the OLD G. BARRETT. i

of such fluid,

on this 14th day of 4 

